989945

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{439}}^1$

素因数の和:496

約数の個数: 16

約数和(自身を含む): 1330560

約数和(自身を除く): 340615

約数列:

[1, 5, 11, 41, 55, 205, 439, 451, 2195, 2255, 4829, 17999, 24145, 89995, 197989, 989945]

約数ペア:

[(1, 989945), (5, 197989), (11, 89995), (41, 24145), (55, 17999), (205, 4829), (439, 2255), (451, 2195)]